I call my wife babe, frequently. Evidently the peejster noticed this, and this morning, relatively out of the blue, had this conversation with my wife.
"You are called babe."
"That's right, I am. Who calls me that, PJ?"
"You are also called Kathleen."
"Yes, I am, but who calls me babe?" (Hoping, for him to say 'daddy' I guess.)
"You're name is Kathleen."
"Yes, PJ, my Real name is Kathleen. But who calls me babe?"
"I just did."